Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Effect of Pressure on the Interstitial Diffusion of Nickel in Lead to 50 kbar

Effect of Pressure on the Interstitial Diffusion of Nickel in Lead to 50 kbar The diffusion of nickel in lead has been investigated using radioactive-tracer and sectioning techniques for pressures of up to 50 kbar and for temperatures in the range 208-591 °C. The data were analyzed assuming a single effective mechanism of diffusion with a temperature- and pressure-dependent activation energy and preexponential factor. The activation energy and volume at the melting temperature and atmospheric pressure are, respectively, Δ H = 10.6 ± 0.4 kcal/mole and Δ V V 0 = 0.13 ± 0.04 . The pressure and temperature coefficients of the activation volume, although quite uncertain, were also determined. The small activation energy and volume indicate that nickel diffuses in lead primarily by the interstitial mechanism. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review B American Physical Society (APS)

Effect of Pressure on the Interstitial Diffusion of Nickel in Lead to 50 kbar

Physical Review B , Volume 7 (2) – Jan 15, 1973
6 pages

Loading next page...
 
/lp/american-physical-society-aps/effect-of-pressure-on-the-interstitial-diffusion-of-nickel-in-lead-to-GwnC5D0DQP

References (10)

Publisher
American Physical Society (APS)
Copyright
Copyright © 1973 The American Physical Society
ISSN
1095-3795
DOI
10.1103/PhysRevB.7.575
Publisher site
See Article on Publisher Site

Abstract

The diffusion of nickel in lead has been investigated using radioactive-tracer and sectioning techniques for pressures of up to 50 kbar and for temperatures in the range 208-591 °C. The data were analyzed assuming a single effective mechanism of diffusion with a temperature- and pressure-dependent activation energy and preexponential factor. The activation energy and volume at the melting temperature and atmospheric pressure are, respectively, Δ H = 10.6 ± 0.4 kcal/mole and Δ V V 0 = 0.13 ± 0.04 . The pressure and temperature coefficients of the activation volume, although quite uncertain, were also determined. The small activation energy and volume indicate that nickel diffuses in lead primarily by the interstitial mechanism.

Journal

Physical Review BAmerican Physical Society (APS)

Published: Jan 15, 1973

There are no references for this article.